president obama was among those paying tribute. >> we will never see the life of nelson mandela again. but let me say to the young people of africa and the young people around the world you, too, can make his life's work your own. >> general motors made history today as we were just telling you, naming mary barra the c.e.o. of the company after dan ackerson retires in january and will be the first woman to lead a global automaker and will be doing it right after the u.s. government exits its massive financial stake in g.m. the former c.e.o. of general motors was credited for turning the company around and is on the phone with us for a bloomberg exclusive. thank for you taking time-out for "market makers. let's talk about mary barra, you were the c.e.o. when she was put in human resource in addition to her role in manufacturing and engineering. at that time in 2009, ed, did you see her for a candidate for c.e.o.? >> sure, mary has a lot of tagent -- talent and experience and very personable and did a terrific job in the human resources function of general motors. of course. >> what was